<template>
    <!--添加和修改章节表单-->
    <el-dialog :visible="dialogVisible" title="添加章节" @click="close()">
      <el-form :model="chapter" label-width="120px">
        <el-form-item label="章节标题：">
          <el-input v-model="chapter.title" clearable/>
        </el-form-item>
        <el-form-item label="章节排序：">
          <el-input-number v-model="chapter.sort" :min="0"/>
        </el-form-item>
      </el-form>
      <div slot="footer" class="dialog-footer">
        <el-button @click="close()">取 消</el-button>
        <el-button type="primary" @click="saveOrUpdate()">确 定</el-button>
      </div>
    </el-dialog>
</template>
<script>
import chapterApi from "@/api/chapter";
export default {
  name: "form",
  data() {
    return {
      dialogVisible: false,
      chapter: {
        sort: '0',
      }
    }
  },
  methods: {
    open() {
      this.dialogVisible = true
    },
    close() {
      this.dialogVisible = false
      this.chapter = {
        sort: '0'
      }
    },

    saveOrUpdate() {
      if (!this.chapter.id) {
        this.save()
      } else {
        this.update(this.chapter)
      }
    },

    save() {
        this.chapter.courseId = this.$parent.$parent.courseId
        chapterApi.save(this.chapter).then(res => {
          this.$message.success(res.message)
          this.close()
          this.$parent.fetchData()
        })
    },

    update(val) {
        chapterApi.updateById(val).then(res => {
          this.$message.success(res.message)
          this.$parent.fetchData()
          this.close()
        })
    }

  }
}
</script>

<style scoped>

</style>
